The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 24, 1985
Filed:
Oct. 26, 1983
John E Shepler, Rockford, IL (US);
Sundstrand Corporation, Rockford, IL (US);
Abstract
A data converter comprises a pair of NAND gates and a pair of bipolar differential operational amplifiers. Monopolar binary digital data in uninverted and inverted forms and a clock signal are connected with the NAND gate inputs. The NAND gate outputs are complementary monopolar data signals at the clock frequency and are cross-coupled to the direct and inverting inputs of the operational amplifiers. The outputs of the operational amplifiers are complementary bipolar data signals. Low pass filters establish the rise and fall times of the bipolar data signals and the high frequency response limit. Voltage buffers isolate the converter from the data transmission line and include current limiting resistors which prevent damage in the event of a short circuit of the line.